I really like my Wiseco pistons and they now make a replacement pistons for your application with stock rods and pins.
The Speed-Pros are closer to the stock piston weight and will probably be OK without a re-balance. The KB Hyper pistons are pretty heavy with a lot of mass swinging way out there on a stock rod.
There are lots of good pistons out there now but do your homework on what piston height you need and what your actual CC's your heads have to get an actual compression ratio.
I would at least give Wiseco a call they are very helpful and actually answer the phone thumbs

Gus beer


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60